Improvement in weighing-registers



W. O. STRONG.

Spring Scales.

Patented Jan. 7,1862.

Ina/e215? moved.

UNITED STATES PATENT OFFICE.

WILLIAM O. STRONG, OF DETROIT, MICHIGAN.

IMPROVEMENT IN WElGHlNG-REGISTERS.

Specification forming part of Letters Patent No. 34,077, dated January '7, 1862.

To all whom it may concern:

Beit known that I, WILLIAM O. STRONG, of Detroit, in the county of Wayne, in the State of Michigan, have invented a new and useful machine for registering the number of times that a definite or approximate weight has been weighed upon grain or other scales, entitled a Scale-Register, and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure 1 is a front elevation of the machine in position under the scale-beam. Fig. 2 is a side elevation of the same. Fig. 3 is an elevation with the dial-face and finger re Fig. 4 is a side elevation with onehalf of the outer case removed. Fig. 5 is a detached view of that portion of the traveling bar to which the angular pieces forming the groove are attached.

The construction and operation of my machine are as follows:

A in the accompanying drawings is abrass or other metal case, and IV a metal wheel or disk placed upon a shaft E. In this wheel or disk small steel pins 19 p p are inserted, moving in the groove formed by the angular pieces I and K.

T is a steel bar working in guides G G, having attached to its face two angular pieces I and K, the angle of one inclining to the right and the other to the left at angles of about forty-five degrees, with a line through the centerof the bar T, forming, when attached to the bar, a groove in which the pins 19 p 1) move, the plane of each of the pieces I and K, extending beyond the center of the bar T, causing, when the bar T is moved down and up, the pin 19 to be carried across the bar, and so with each successive movement of the bar one pin enters and the other leaves the groove formed by the pieces I and K.

S S are spiral springs working on guiderods M. M. These springs are placed under a cross-piece N, fastened to the traveling bar T. The springs are regulated by means of the set-screws D D.

The shaft E is supported by a small boss projecting from the back of the case, and by a cross-bar O placed just back of the dial face L. The index-finger II is fastened to the outer end of the shaft E, and its movements correspond with those of the wheel IV on the shaft E.

The working of the machine is as follows: It is placed either under the scale-beam, as shown in the accompanying drawings, Fig. 1, or above, and connected by means of a stirrup attached to the bottom of the bar T and reaching below the beam. IVhen the hopper attached to the scale is empty or no weight upon the platform of the scale, the weights upon the pendulum of the scale carry down the bar T until the point I) on the angular piece I, Fig. 5, strikes the pin at a and carries it forward until it comes to the position at c in the same figure. \Vhen the bar T is in this position, the scale-beam is in the position shown by the blue line B, Fig. 1. Now when the hopper on the scale is being filled with grain or weight is being placed upon the scale the springs S S, pressing up the bar T, lift a portion of the weight on the pendulum, and that, in connection with the weight in the hopper, causes the beam B to rise until it reaches the position shown by the black line B, Fig. 1. In rising, the angular piece K, Fig. 5, has struck the pin (left at 0 when the bar T was down) at c, Fig. 5, and carried it forward to the point (I, the index-finger in the meantime having moved over the distance on the dial-face from 4:0 to 1. hen the scalebeam has reached thelast position mentioned, as shown by the black line B, Fig. 1, the bar T ceases to follow the beam, and is held in that position by the springs S S. hen sufficient weight is placed in the hopper or on the scale to cause the beam to rise, it leaves the bar T, and the weight is taken while the beam vibrates in the open space between the bar T and the guard O, the springs holding the bar T in this position so strongly that the downward vibration of the beam B in weighing shall not cause the bar to be forced down until the weight is removed from the scale; but gradually as the weight is being removed from the scale the weights on the pendulum, being greater than the force of the springs, press the bar down. The springs S S are adjustable for the purpose of allowinga greater or less weight on the pendulum to press the bar T down.

The operations above described are repeated at each successive time of Weighing, the index-finger recording faithfully the exact number of times that the same or an approximate Weight has been weighed upon the scale.

What I claim as my invention, and desire to secure by Letters Patent, is

The traveling bar T, With the angular pieces I and K attached, in combination With the pin-Wheel WV or its equivalent, and springs, either spiral or otherwise, Working substantially in the manner and for the purpose set forth.

\V. O. STRONG.

\Vitnesses:

D, O. WHnrWooD, GEO. S. FROST. 

